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Volume 13 | Issue 4 | Year 2026 | Article Id. IJME-V13I4P106 | DOI : https://doi.org/10.14445/23488360/IJME-V13I4P106

Experimental Study on the Impact of Seat Foam Thickness, Density, and Multilayer Configurations on Vibration Damping in Two-Wheelers

Vishwanath Mali, Ajit Bhosale

Received Revised Accepted Published
12 Jan 2026 22 Feb 2026 22 Mar 2026 29 Apr 2026

Citation :

Vishwanath Mali, Ajit Bhosale, "Experimental Study on the Impact of Seat Foam Thickness, Density, and Multilayer Configurations on Vibration Damping in Two-Wheelers," International Journal of Mechanical Engineering, vol. 13, no. 4, pp. 78-84, 2026. Crossref, https://doi.org/10.14445/23488360/IJME-V13I4P106

Abstract

The seat foam of a two-wheeler plays a vital role in overall comfort. Vibration transmission from the seat to the rider is an important factor that affects rider comfort and fatigue, and is largely dependent on the seat foam configuration. An experiment was conducted to determine the influence of seat foam thickness, its density, and multilayer arrangement on vibration damping. An ADXL345 three-axis accelerometer was used to measure seat vibration. For real-time data from the city road, the vehicle was running on a fixed path at 20 km/h and recorded both engine and road-excited vibration. The experiments showed that as the foam thickness increased from 30 mm to 50 mm, seat vibration acceleration decreased significantly. Moreover, increasing the foam density from 50 kg/m³ to 70 kg/m³ resulted in higher seat vibration due to increased stiffness. Furthermore, no significant change in vibration through the utilisation of multilayer density configuration (such as 50-60 kg/m³ & 60-50 kg/m³) compared to single-layer foams with the same thickness. These results clearly indicate the need to optimise seat foam parameters to bring comfort in vehicle seats.

Keywords

Foam Density, Foam Thickness, Multilayer configuration, Seat Foam, Vibration Damping.

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